Abstract:
Rhizosphere, the interface between soil and plant roots, is a chemically complex environment which supports the development and growth of diverse microbial communities. The composition of the rhizosphere microbiome is dynamic and controlled by activities of the plants and chemical signals from the plants. Plants nourish rhizosphere microbes via provision of carbon metabolic substrates, which play as the major sources of energy for driving microbial activities and functions. The beneficial plant microbe interactions can via metabolite exchange and nutrient transfer, performed by mycorrhizal fungi and other root associated microbes, provide plants with N or P nutrients, or stimulation of antagonism towards pathogens, and mitigation of stresses. In previous years, we combined use isotopes and microbiological techniques to unravel the interactions among rhizosphere at multiple ecological levels scaled from individuals to ecosystem. In these studies, we qualified and quantified the distributions of plant photosynthetic C inputs into rhizosphere, with an emphasis on the impact of plant genotype and environmental factors. Furthermore, we also investigated the C use efficiency of functional groups of micro-organisms that colonize rhizosphere and explored their metabolic activities and feedback on plant growth. Additionally, we investigated the impacts of climate changes on rhizosphere microbe C fluxes interaction and its application in plant resistance strategy. Insights into the plant-microbe interactions and the key determinants governing rhizosphere ecology will improve our understanding of potential implications of microbial functions in sustainable agriculture and nature restoration.
Speaker: Dr. Lingling Shi
Affiliation: Kunming Institute of Botany
Time: 4:30 PM, Tuesday, June. 27, 2023
Venue: ZOOM 会议平台 会议 ID：312 430 8960 会议密码 PWD：666666
ZOOM
会议 ID：312 430 8960
会议密码 PWD：666666
